| 大陆剥蚀速率与造山隆升速率研究的某些进展 |
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| 引用本文： | 杨坤光,马昌前.大陆剥蚀速率与造山隆升速率研究的某些进展[J].地质科技情报,1996,15(4):89-96. |
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| 作者姓名： | 杨坤光 马昌前 |
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| 作者单位： | 中国地质大学地球科学学院 |
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| 摘 要： | 大陆的机械剥蚀速率与区域高度和地表径流量呈正相关关系。化学溶蚀速率与地表径流量呈正相关关系。在大陆地壳无升降运动条件下，现代大陆剥蚀夷平至海平面只需30－300Ma。大陆平均高度受控于地球内部的放射性热能，由于放射性热能的缓慢衰减而引起大陆平均高度的缓慢降低。剧烈构造运动期间，隆升速率可以是剥蚀速率的数倍，由于隆升的阶段性（短期性）和剥蚀的持续性（长期性）使大陆高度长期发生不断的变化。
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| 关 键 词： | 机械剥蚀 化学溶蚀 剥蚀速率 隆升速率 地表径流量 造山带隆升 |
SOME ADVANCES IN THE RATES OF CONTINENTAL EROSION AND MOUNTAIN UPLIFT |
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| Yang Kunguang,Ma Changqian.SOME ADVANCES IN THE RATES OF CONTINENTAL EROSION AND MOUNTAIN UPLIFT[J].Geological Science and Technology Information,1996,15(4):89-96. |
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| Authors: | Yang Kunguang Ma Changqian |
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| Abstract: | Mechanical erosion rate has a positive correlation with district average elevation and runoff.Chemical erosion rate has a positive correlation with runoff.If no any tectonic movement occurs within continents,the average continental elevation depends on the rate of radiogenic heat production,and it will decrease slowly through time due to the reduction of radiogenic heat production. During an intensive tectonic movement,the rate of uplift could be quite a few times higher than that of erosion.Since the short term of rapid uplift and the long term of slowly erosion,continental elevation continually varied in geological time. |
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| Keywords: | mechanical erosion chemical erosion erosion rate uplift rate |
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